Egg prices have remained high in January, with the Consumer Price Index reporting a 70.1% increase compared to a year ago, according to the US Bureau of Labor Statistics.

The prices of eggs have been rising consistently since November, with an 8.5% increase in January compared to December.

Despite a slight decrease in wholesale prices, egg prices for retail consumers have not yet dropped. As a result, two members of Congress, Senator Elizabeth Warren and Representative Katie Porter, have written letters to the CEOs of five top egg-producing companies, asking for more information on the reasons behind the high prices and whether there has been any price gouging.

The lawmakers also expressed concern over supply chain disruptions and the ongoing epidemic of avian flu, which has caused shortages of eggs due to reduced hen populations. Cal-Maine Foods, the largest US egg producer, attributed the elevated egg prices to the reduced national hen supply caused by the highly pathogenic avian influenza and high consumer demand.